Handsome - Wanda may have an odd sense of what is good-looking, or bypasses the "dashing" and "handsome" requirements when Stanley asks to "just make him big".

Heroic - May have been added through the "Ruthlessness" quality of the sword. He is willing to risk his own presence on the battlefield at the most vital junctures at the end where he was needed. He stands up to Erfworld itself at the end of the Battle for Gobwin Knob, declaring his opposition to what just occurred. He still has the tendency to put himself on the battlefield (not going to put others where he won't go), so this may be an innate trait.

Inspiring - May have been added via the "Leadership" quality of his sword.

Strategic genius and/or Natural Signamancer - Erfworlders are traditionalists. Parson sees the world in a way they never will due to how he views the world as a warlord and a natural signamancer. See Parson being a Signamancer.

Obsessed with war - Considers the military uses of everything he sees.

Plans wars and kills his foes for fun - Parson was introduced as a long-time tabletop wargame player, an entertainment activity (for fun) in which you plan wars and kill foes.

Eats marbits and gwiffons - Marbits are marshmallow bits in breakfast cereal. Gwiffons are shaped like peeps.Erf-b1-p017. Directly before being summoned, Parson was seen eating peeps and commenting on the ideal staleness for marbits.

Everything should seem familiar and safe to him. No crazy surprises - There are many references to the culture of Earth (particularly American and/or geek culture, which Parson would be most familiar with) embedded in the phenonena of Erfworld

Looks like they got what they paid for.

Compensating

The spell's results were more than unusual. After pulling Parson, the spell created a number of magical items on the following days to equip him and transform him into the true Perfect Warlord:

A pair of 3D Glasses that gives him the Erfworlder's natural ability to see other units' stats;

And finally, a three-piece sword, with the enchantments of "Leadership", "Combat ability" and "Ruthlessness".

Real World References

The spell caused the casting chamber to resemble that of the Master Program from Tron.

The fact that the casting that summoned Judy Gale killed Bell as an immediate effect of the spell is a reference to how in The Wonderful Wizard of Oz, the wicked witch of the East is crushed by Dorothy's house.